AM_Chondrodite_2 Formula: Si4 Mg9 O16.72 F1.28 H.66 Name: Chondrodite Unit cell: 4.7405 10.2377 13.6496 100.843 90.0 90.0 , V=650.61 Space group: P21/B11 (14)

Ottolini L , Camara F , Bigi S , American Mineralogist , 85 (2000) p.89-102, An investigation of matrix effects in the analysis of fluorine in humite-group, minerals by EMPA, SIMS, and SREF, Sample: Chum HV-41 n.2